Suggestions on how to remove large seized wood screw

[Blackgang boy]

Can anybody suggest a method to remove a large wood screw that passes through a wooden handle and into the bulk head behind as i need to access the bulk head behind.
The spacer behind is fixed to the handle by two screws from the rear and not accessible, all attempts to to release the final bulk head fixing has failed and screw is starting to deform at the head.


The offending screw pictured in situ.
I would like to release with as little damage as possible, grateful for any suggestions.

Thanks

 

[Huttoft]

6Pc Damaged Screw Extractor Easy Out Set Bolt Stud Remover Drills Tools Kit Tap | eBay

First of 926 results.
Better quality ones no doubt would follow on afterward.

 

[burgundyben]

Make sure the slot is really clear of debris. Find a screw driver you can put a spanner on the shaft. Lean on it hard and turn. If that fails then a small holesaw without the pilot drill, use a piece of ply with a hole already cut as a guide. Cut down the outside with the holesaw. Fit a plug to repair. Redrill.

 

[Old Harry]

suitable size screwdriver in slot-tap sd with hammer - turn clockwise if it will- then unscrew, if it will, if not any of the above

 

[Keith 66]

Dont bother with screw extractors, all they will do is bugger it up even more, or snap off leaving you with a worse problem.
Top tip clean slot as much as possible then stick a soldering iron on it, give it a good heat up & it will often break the join.

 

[Old Harry]

Can anybody suggest a method to remove a large wood screw that passes through a wooden handle and into the bulk head behind as i need to access the bulk head behind.
The spacer behind is fixed to the handle by two screws from the rear and not accessible, all attempts to to release the final bulk head fixing has failed and screw is starting to deform at the head.

View attachment 95133
The offending screw pictured in situ.
I would like to release with as little damage as possible, grateful for any suggestions.

Thanks

Are you sure its not a machine screw

 

[Seashoreman]

Dont bother with screw extractors, all they will do is bugger it up even more, or snap off leaving you with a worse problem.
Top tip clean slot as much as possible then stick a soldering iron on it, give it a good heat up & it will often break the join.

This would be my advice also. I have been dismantling antique pianos most of my life and have experience of jammed screws.
The problem with extractors is if the screw is well and truly stuck the extractor will quite probably snap off and then you have even more problems than you started with. Soldering iron, massive screwdriver, that fits, and occasional clout to break free.
Perhaps try to get hold of an 'impact screwdriver' to get it started?
Otherwise you may have to resort to drilling the head off and drilling into the screw shank, a bit drastic though.

 

[Aardee]

Another vote here for heat and/or an impact driver.

 

[penberth3]

Another vote here for heat and/or an impact driver.

Tighten first helps to break the bond. In the photo the slot looks too far gone for that. I'd drill the head off, pull handle off the remaining bit, then extract that with vise-grips or whatever.

 

[sgr143]

I've successfully used an impact driver to deal with this sort of problem.

 

[JumbleDuck]

Perhaps try to get hold of an 'impact screwdriver' to get it started?

Just what I was going to say.

 

[Boater Sam]

Swear at it, then give it a damn good thrashing.

 

[davidpbo]

The right size good quality screwdriver bit is essential. Do you have something you could down the slot with? Plus what others have suggested. I have never had success with screws extractors

 

[garymalmgren]

remove a large wood screw that passes through a wooden handle and into the bulk head behind as i need to access the bulk head behind.

Plug cutter.
Remove the wood around the screw.
Remove your wooden handle.
Then do what you have to to remove the screw (lockgrips)
Replace missing wood and screw wooden handle back in place with quality s/s or bronze screws.

gary

 

[Jamie Dundee]

I’ve had some success removing awkward screws using my cordless drill with appropriately sized driver head on the hammer drill setting. A bit like a high speed impact driver.

 

[maggietwo]

cut round the screw wih a plug cutter remove the wood plug use a battery drill with revers and hammer action

 

[MonniotC]

I recently removed a seized screw with a knackered slot by cutting a new slot with a dremel (type) diamond cutting wheel. I followed up with heat/large "knock-through" screwdriver and hammer. Spanner on square shaft of screwdriver also.

 

[TernVI]

Heat is worth trying.
I would use a 1/4 hex type bit heated on the gas ring.
Beware of magnetic bit holders not working when hot though!

 

[Blackgang boy]

Thanks everyone for the suggestions, it's given me various options to try.

Wish me luck I'm going in !

 

[Don107]

Just to be clear when everyone is talking about impact drivers this is they type hey are talking about that you hit with a hammer not the cordless drill type
14 Pcs 1/2” Impact Screwdriver Set with Metal Box Reversible Hand Tool | Wish
Regards Don